To provide a JNDI environment with simple-jndi all you have to do is put the simple-jndi jar file in the classpath and a jndi configuration dir (e.g. ${user.home}/test-jndi) on the classpath. In ${user.home}/test-jndi create jndi.properties:
java.naming.factory.initial=org.osjava.sj.SimpleContextFactory
org.osjava.sj.root=file:///c:/Documents and Settings/myUserID/test-jndi/jndi-entries
org.osjava.sj.delimiter=/
org.osjava.sj.colon.replace=!